References:

https://en.wikipedia.org/wiki/Ozone_depletion

https://en.wikipedia.org/wiki/Heating,_ventilation,_and_air_conditioning

https://en.wikipedia.org/wiki/Refrigerant

US EPA

https://www.epa.gov/ozone-layer-protection/basic-ozone-layer-science

Refrigerant

https://www.tekportal.net/refrigerant/

USGBC

https://www.usgbc.org/

https://en.wikipedia.org/wiki/U.S._Green_Building_Council

LEED v4 Reference Guide-BD+C (ISBN: 978-1-932444-18-6)